diff --git a/bios/8086.asm b/bios/8086.asm
index a6f4ac3..6600127 100644
--- a/bios/8086.asm
+++ b/bios/8086.asm
@@ -121,6 +121,8 @@ READER:
 
 ; DISK I/O
 HOME:
+  MOV WORD [DISKCX], 0x0001
+  MOV BYTE [DISKDX+1], 0x00
   RET
 
 SELDSK: